A statistically self-consistent fatigue damage accumulation model including load sequence effects under spectrum loading

A statistically self-consistent fatigue damage accumulation model including load sequence effects under spectrum loading

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A probabilistic methodology is proposed to evaluate fatigue damage accumulation and fatigue lives of specimens under variable amplitude loading. With probabilistic modifications in the present model, the calculative consistency is achieved between fatigue damage and fatigue life. The load sequence...

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Bibliographic Details
Main Authors: Chen Xianmin, Sun Qin, Dui Hongna, Fan Junling
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2016-10-01
Series:Frattura ed Integrità Strutturale
Subjects:
Fatigue damage
Fatigue life
Probabilistic statistical model
Load sequence effect
Statistical self-consistency
Online Access:http://www.gruppofrattura.it/pdf/rivista/numero38/numero_38_art_42.pdf
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spelling doaj-9ef4e6f4d2e14a3ba3f212bef10f34702020-11-24T22:56:01ZengGruppo Italiano FratturaFrattura ed Integrità Strutturale1971-89931971-89932016-10-01103831933010.3221/IGF-ESIS.38.42 A statistically self-consistent fatigue damage accumulation model including load sequence effects under spectrum loading Chen Xianmin0Sun Qin1Dui Hongna2Fan Junling3Northwestern Polytechnical University,ChinaNorthwestern Polytechnical University,ChinaNorthwestern Polytechnical University,ChinaAircraft Strength Research Institute,China A probabilistic methodology is proposed to evaluate fatigue damage accumulation and fatigue lives of specimens under variable amplitude loading. With probabilistic modifications in the present model, the calculative consistency is achieved between fatigue damage and fatigue life. The load sequence effects on fatigue damage accumulation are properly accounted for variable amplitude loading. The developed damage model overcomes the inherent deficiencies in the linear damage accumulation rule, but still preserves its simplicity for engineering application. Based on the Monte Carlo sampling method, numerical verification of this model is conducted under two kinds of spectrum loading. The predicted probabilistic distributions of fatigue lives are validated by fatigue tests on Al-alloy straight lugshttp://www.gruppofrattura.it/pdf/rivista/numero38/numero_38_art_42.pdfFatigue damageFatigue lifeProbabilistic statistical modelLoad sequence effectStatistical self-consistency
collection DOAJ
language English
format Article
sources DOAJ
author Chen Xianmin
Sun Qin
Dui Hongna
Fan Junling
spellingShingle Chen Xianmin
Sun Qin
Dui Hongna
Fan Junling
A statistically self-consistent fatigue damage accumulation model including load sequence effects under spectrum loading
Frattura ed Integrità Strutturale
Fatigue damage
Fatigue life
Probabilistic statistical model
Load sequence effect
Statistical self-consistency
author_facet Chen Xianmin
Sun Qin
Dui Hongna
Fan Junling
author_sort Chen Xianmin
title A statistically self-consistent fatigue damage accumulation model including load sequence effects under spectrum loading
title_short A statistically self-consistent fatigue damage accumulation model including load sequence effects under spectrum loading
title_full A statistically self-consistent fatigue damage accumulation model including load sequence effects under spectrum loading
title_fullStr A statistically self-consistent fatigue damage accumulation model including load sequence effects under spectrum loading
title_full_unstemmed A statistically self-consistent fatigue damage accumulation model including load sequence effects under spectrum loading
title_sort statistically self-consistent fatigue damage accumulation model including load sequence effects under spectrum loading
publisher Gruppo Italiano Frattura
series Frattura ed Integrità Strutturale
issn 1971-8993
1971-8993
publishDate 2016-10-01
description A probabilistic methodology is proposed to evaluate fatigue damage accumulation and fatigue lives of specimens under variable amplitude loading. With probabilistic modifications in the present model, the calculative consistency is achieved between fatigue damage and fatigue life. The load sequence effects on fatigue damage accumulation are properly accounted for variable amplitude loading. The developed damage model overcomes the inherent deficiencies in the linear damage accumulation rule, but still preserves its simplicity for engineering application. Based on the Monte Carlo sampling method, numerical verification of this model is conducted under two kinds of spectrum loading. The predicted probabilistic distributions of fatigue lives are validated by fatigue tests on Al-alloy straight lugs
topic Fatigue damage
Fatigue life
Probabilistic statistical model
Load sequence effect
Statistical self-consistency
url http://www.gruppofrattura.it/pdf/rivista/numero38/numero_38_art_42.pdf
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AT sunqin statisticallyselfconsistentfatiguedamageaccumulationmodelincludingloadsequenceeffectsunderspectrumloading
AT duihongna statisticallyselfconsistentfatiguedamageaccumulationmodelincludingloadsequenceeffectsunderspectrumloading
AT fanjunling statisticallyselfconsistentfatiguedamageaccumulationmodelincludingloadsequenceeffectsunderspectrumloading
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